Megatherium
Despite its size, megatherium was probably an omnivore or herbivore. Image Source: Wikipedia
A sloth isn’t exactly the first thing that comes to mind when thinking of deadly monsters. But the megatherium was more like the modern sloth’s giant, angry grandpa. It behaved like a sloth, sort of looked like a bear, and was about the size of an elephant.
Unlike an elephant, though, megatherium also had giant claws and could stand on its hind legs to appear even more massive. And unlike all other animals on this list, there’s a pretty strong chance that humans interacted with this giant sloth because megatherium only died out as recently as 10,000 years ago.
Next up: Its jaws were so big that it could hunt prey as big as it was…
